✨ 最佳解答 ✨
xについて整理すると、
(与式)=x^2+(4-2y)x+y^2-4y+3
=x^2+(4-2y)x+(y-1)(y-3)
=x^2+(4-2y)x+{-(y-1)}{-(y-3)}
=x^2+(4-2y)x+(1-y)(3-y)
=x^2+{(1-y)+(3-y)}x+(1-y)×(3-y)
={x+(1-y)}{x+(3-y)}
=(x-y+1)(x-y+3)…(答)
✨ 最佳解答 ✨
xについて整理すると、
(与式)=x^2+(4-2y)x+y^2-4y+3
=x^2+(4-2y)x+(y-1)(y-3)
=x^2+(4-2y)x+{-(y-1)}{-(y-3)}
=x^2+(4-2y)x+(1-y)(3-y)
=x^2+{(1-y)+(3-y)}x+(1-y)×(3-y)
={x+(1-y)}{x+(3-y)}
=(x-y+1)(x-y+3)…(答)
看了這個問題的人
也有瀏覽這些問題喔😉